Multiple choice

Which of the following is most likely to prevent extinction of a rare allele in which homozygosity represents a genetic lethal?

  1. New mutation

  2. Genetic drift

  3. Founder effect

  4. Balanced polymorphism

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Extinction of a lethal allele can be prevented by replacement of lost alleles due to new mutation.